FreeTTS

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Text to speech in 149 languages: MP3 links from any assistant. Free without an account.

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check_usage Read-only

Show the FreeTTS plan behind this connection and what is left: characters today or this month, requests a minute, HD voices, watermark. Use it when the user asks about limits, their plan, or why a request was refused.

This tool takes no arguments.

Tools (7)

check_usage

read-only

No arguments.

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {}
}

dialogue_to_speech

Turn a script with several speakers into one audio file, a different FreeTTS voice per speaker, with a pause between lines. Write each line as 'Name: text'. Use it for two-host shows, interviews, scenes, language lessons with two speakers. Needs a connected FreeTTS PRO account.

Argument	Type	Description
script*	string	Lines like 'Abd: Tonight we cook shakshuka.' one per line. Names before the colon.
voices	object	Speaker name to FreeTTS voice id, like {"Abd": "en-US-AndrewNeural", "Guest": "en-US-EmmaNeural"}. Unnamed speakers get a voice each.
language	string	Language of the lines when no voices are given.
pause_ms	integer	Silence between lines in milliseconds. Default 600.

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "script"
  ],
  "properties": {
    "script": {
      "type": "string",
      "maxLength": 25000,
      "minLength": 1,
      "description": "Lines like 'Abd: Tonight we cook shakshuka.' one per line. Names before the colon."
    },
    "voices": {
      "type": "object",
      "description": "Speaker name to FreeTTS voice id, like {\"Abd\": \"en-US-AndrewNeural\", \"Guest\": \"en-US-EmmaNeural\"}. Unnamed speakers get a voice each.",
      "additionalProperties": {
        "type": "string"
      }
    },
    "language": {
      "type": "string",
      "description": "Language of the lines when no voices are given."
    },
    "pause_ms": {
      "type": "integer",
      "maximum": 5000,
      "minimum": 0,
      "description": "Silence between lines in milliseconds. Default 600."
    }
  },
  "additionalProperties": false
}

list_voices

List FreeTTS voices for a language or a search word, with the voice id to pass to text_to_speech. Says which voices are free and which need a FreeTTS PRO key (HD and Signature). Use it when the user names a language, accent or gender, or asks what voices exist.

read-only

Argument	Type	Description
limit	integer	How many to return. Default 15.
gender	string	Filter by gender.
search	string	A word to match in the voice name or personality, like 'Andrew', 'calm' or 'news'.
language	string	Language or locale, like 'German', 'de-DE', 'Spanish (Mexico)' or 'en'. Empty lists every language.
free_only	boolean	Only voices that work without a FreeTTS key.

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "limit": {
      "type": "integer",
      "maximum": 200,
      "minimum": 1,
      "description": "How many to return. Default 15."
    },
    "gender": {
      "enum": [
        "female",
        "male",
        "any"
      ],
      "type": "string",
      "description": "Filter by gender."
    },
    "search": {
      "type": "string",
      "description": "A word to match in the voice name or personality, like 'Andrew', 'calm' or 'news'."
    },
    "language": {
      "type": "string",
      "description": "Language or locale, like 'German', 'de-DE', 'Spanish (Mexico)' or 'en'. Empty lists every language."
    },
    "free_only": {
      "type": "boolean",
      "description": "Only voices that work without a FreeTTS key."
    }
  },
  "additionalProperties": false
}

script_to_tracks

Record a script with exact timing, the way FreeTTS Script mode does: (pause 2) is exactly 2 seconds of silence, (beep), (ding) and (click) play a sound, 'CUE:' lines are read in a second voice, 'TRACK: name' starts a new audio file, 'NAME: line' makes a scene with a voice per character. Returns one file with everything plus one file per track. Use it for ear prompter tracks, voiceovers timed to footage, rehearsal tracks, workout or recipe step audio. Needs a connected FreeTTS PRO account.

Argument	Type	Description
speed	integer	Percent slower or faster for the main lines. Default 0.
script*	string	The script text. See freetts.org/text-to-speech-for-actors for the syntax.
my_part	string	In a scene, the character you play: their lines become timed gaps for you to say them.
count_in	string	Spoken count-in before each track, one number a second. Default none.
cue_voice	string	Voice for CUE: lines and [bracketed] words. Default Aria.
track_end	string	After the last line of each track: nothing, a long beep, or the word End. Default none.
line_voice	string	Voice for the main lines: a steady voice name or id (Guy, Andrew, Ava, Aria, Jenny, Brian, Emma, Sonia, Ryan, Libby, Natasha, William, Clara, Liam...). Default Guy.

suggest_voice

Suggest three FreeTTS voices for a language and a use (audiobook, tutorial, ad, news, children's story, meditation, podcast), with a short reason each. Use it when the user has not named a voice.

read-only

Argument	Type	Description
use	string	What the audio is for, in a few words.
gender	string
language*	string	Language or locale, like 'English (US)', 'de-DE' or 'Portuguese (Brazil)'.

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "language"
  ],
  "properties": {
    "use": {
      "type": "string",
      "description": "What the audio is for, in a few words."
    },
    "gender": {
      "enum": [
        "female",
        "male",
        "any"
      ],
      "type": "string"
    },
    "language": {
      "type": "string",
      "description": "Language or locale, like 'English (US)', 'de-DE' or 'Portuguese (Brazil)'."
    }
  },
  "additionalProperties": false
}

text_to_speech

Convert text to spoken audio with a FreeTTS voice and return a download link to the MP3 (or WAV with a FreeTTS PRO key). Use it when the user wants text read aloud, narrated, or saved as an audio file. Without a FreeTTS key: standard voices, up to 2,000 characters a call, a short spoken "FreeTTS" tag at the end, file kept one hour. With a key: the account's plan (PRO: HD and Signature voices, no tag, 10,000 characters a call, files kept 30 days).

Argument	Type	Description
text*	string	The text to read. Plain text; SSML is not needed.
speed	integer	Percent slower (negative) or faster (positive). Default 0.
voice	string	A FreeTTS voice id from list_voices, like en-US-JennyNeural (a short name like 'Jenny' also works). If empty, a good standard voice for the language is chosen.
format	string	mp3 (default) or wav (FreeTTS PRO).
language	string	Language of the text when no voice is given, like 'German' or 'pt-BR'.
include_audio	boolean	Also return the audio bytes in the result (large). Default false; the link is enough for most clients.

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "text"
  ],
  "properties": {
    "text": {
      "type": "string",
      "maxLength": 30000,
      "minLength": 1,
      "description": "The text to read. Plain text; SSML is not needed."
    },
    "speed": {
      "type": "integer",
      "maximum": 30,
      "minimum": -30,
      "description": "Percent slower (negative) or faster (positive). Default 0."
    },
    "voice": {
      "type": "string",
      "description": "A FreeTTS voice id from list_voices, like en-US-JennyNeural (a short name like 'Jenny' also works). If empty, a good standard voice for the language is chosen."
    },
    "format": {
      "enum": [
        "mp3",
        "wav"
      ],
      "type": "string",
      "description": "mp3 (default) or wav (FreeTTS PRO)."
    },
    "language": {
      "type": "string",
      "description": "Language of the text when no voice is given, like 'German' or 'pt-BR'."
    },
    "include_audio": {
      "type": "boolean",
      "description": "Also return the audio bytes in the result (large). Default false; the link is enough for most clients."
    }
  },
  "additionalProperties": false
}

transcribe_audio

Turn a recording into text with FreeTTS speech to text. Give a public https URL to an audio file (mp3, wav, m4a, ogg, webm). Needs a connected FreeTTS PRO account.

read-only

Argument	Type	Description
language	string	Language of the recording, like 'en-US', 'de-DE', 'Arabic' or 'es', or 'auto' to detect it (default).
audio_url*	string	Public https URL of the audio file.

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "audio_url"
  ],
  "properties": {
    "language": {
      "type": "string",
      "description": "Language of the recording, like 'en-US', 'de-DE', 'Arabic' or 'es', or 'auto' to detect it (default)."
    },
    "audio_url": {
      "type": "string",
      "format": "uri",
      "description": "Public https URL of the audio file."
    }
  },
  "additionalProperties": false
}